<!DOCTYPE html>
<style>
div {
  background-color: green;
  position: fixed;
  width: 100px;
  height: 100px;
}
.offset-0 { top: 10px; }
.offset-1 { top: 120px; }
.offset-2 { top: 230px; }
.offset-3 { top: 340px; }
.offset-4 { top: 450px; }
.offset-5 { top: 560px; }
.offset-6 { top: 670px; }
.offset-7 { top: 780px; }
</style>

<div class="offset-0"></div>
<div class="offset-1"></div>
<div class="offset-2"></div>
<div class="offset-3"></div>
<div class="offset-4"></div>
<div class="offset-5"></div>
<div class="offset-6"></div>
<div class="offset-7"></div>
